Bewolking — 2026
| Month | Nivelles | Braine-l'Alleud | Difference |
|---|---|---|---|
| Jan | 80.5 % | 79.1 % | +1.4 |
| Feb | 80.3 % | 79.6 % | +0.7 |
| Mar | 52.2 % | 54.3 % | -2.1 |
| Apr | 58.4 % | 57.9 % | +0.5 |
| May | 59 % | 59.3 % | -0.3 |
| Jun | 63.2 % | 64 % | -0.8 |
| Jul | 42.4 % | 42.5 % | -0.1 |
| Aug |
| 54.8 % |
| 54 % |
| +0.8 |
| Sep | 66.6 % | 68.8 % | -2.2 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |